Home / 790,038.94-1,090,136.85-479,780.19

Finding the Fourth Proportional to 790,038.94, 1,090,136.85 and 479,780.19

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Solution

The fourth proportional to 790,038.94, 1,090,136.85 and 479,780.19 is: 662,025.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,038.94 : 1,090,136.85 = 479,780.19 : x
  2. Step 2: Convert to fraction form
    790,038.94/1,090,136.85 = 479,780.19/x
  3. Step 3: Cross multiply
    790,038.94x = 1,090,136.85 × 479,780.19
  4. Step 4: Simplify right side
    790,038.94x = 523,026,064,201.96
  5. Step 5: Solve for x
    x = 523,026,064,201.96/790,038.94
  6. Step 6: Final answer
    x = 662,025.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.